UM-15093500-AA1
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Floating Deadband
•
The Heat and Cool temperature setpoints could be “attached” together. This means
that as one setpoint is adjusted and “hits” against the deadband region, it will “push”
the deadband region and the other setpoint along the temperature setpoint axis to
allow for adjustment while maintaining the configured deadband. If the setpoint is
adjusted back the other way, it will “pull” the deadband region and the other setpoint
along the temperature setpoint axis.
Minimum Cooling Setpoint and Maximum Heating Setpoint
•
Minimum Cooling Setpoint will be confined by set point low limit plus dead band and
Minimum cooling setpoint [AV-39] Default 18°C/ 65°F
•
Maximum Heating Setpoint will be confined by set point high limit minus dead band
and Maximum heating setpoint [AV-40] Default 25°C/ 77°F
Fan Control Output
•
Lowest Fan Speed
is the speed the fan will default to after a control action (Heating or
Cooling) with fan in AUTO mode. If the lowest fan speed [
MSV4
] is set as “Stop (1)”,
the fan will automatically shut off after the control action plus a 2-minute fan-off time
delay. During this delay, the AUTO icon will flash. If lowest fan speed is set to “Low (2)”
the fan will run continuously after a control action
•
Fan Mode
can be toggled between AUTO or ON by using the FAN button on the
thermostat or BACnet object [
MSV0
]
Fan Mode
(BACnet supervisor). By default, this
value is set to “Auto(1)”, the AUTO icon is displayed and fan operation will be
controlled automatically. To put the fan in ON mode set [
MSV0
] to “Low(2)”. This will
cause the fan to run continuously (no AUTO icon is displayed). Fan icon spins when
fan is active. The FAN button can be locked to limit user access to this feature or the
BACnet supervisor can be programmed to default the thermostat to certain state at the
end of an occupancy cycle.
Occupancy Setting